shandong dongyue chemical co., ltd was founded in 1987 and has become the leading in scale environment-friendlyrefrigerant basement in the world. its main refrigerant products include r22, r32, r125, r134a, r152a, r142b and dongyuemixed refrigerants etc, with overall capacity of more than 500,000 tons. shandong dongyue chemical co., ltd, one of thedominant industries in dongyue group, has taken development and industrialization of environment friendly refrigerants as its strategic development focus over the years and successfully developed a series of dongyue-tsinghua green refrigerants cooperated with tsinghua university in 1998. those products won the "national technological invention award". in recent years, dongyue has developed refrigerant technology and independently developed another series of energy-saving and environment-friendly refrigerants. those products has gained the ashrae refrigerant numbers and recognized by national authorised council that they are accord with state industry policies and some performance parameters are superior to those of the similar foreign products, with the total technical level has reached the international advanced one, and with superior thermal performance, non-toxicity and non-ﬂammability, direct flling, low transfer cost and good economic and social benefts.dongyue now has over 30 kinds of alternative refrigerants, has applied for over 90 national invention patents, among which over 50 patents are authorized .
innovation is the power source of dongyue development. shandong dongyue chemical co., ltd. attaches great importance to the research and development of new products, has actively carried out research on the fourth generation refrigerants, including hfo-1234yf, hfo-1234ze, hcfo-1233zd, hfo-1336mzz, etc., and has mastered the key technologies of the fourth-generation refrigerants. in response to national policies, shandong dongyue chemical co., ltd. actively promotes the elimination of the second generation of refrigerant hcfcs and the reduction of the third generation of refrigerant hfcs, making full preparation for the peak carbon dioxide emissions and carbon neutrality. shandong dongyue chemical co., ltd. has a large number of technical reserves in the field of fluorinated electron specific gas, and has independently developed a series of electronic grade special gas, including r23, r318, r125, r116, r41, medical grade r134a, also has reserved producing technology of electronic grade gases such as tungsten hexaﬂuoride, nitrogen triﬂuoride,hexaﬂuorobutadiene and etc.